TY - JOUR AU - Fernández Álvarez-Estrada, Ramón PY - 2023 DO - 10.3390/dynamics3020020 UR - https://hdl.handle.net/20.500.14352/102714 T2 - Dynamics AB - Non-equilibrium evolution at absolute temperature T and approach to equilibrium of statistical systems in long-time (t) approximations, using both hierarchies and functional integrals, are reviewed. A classical non-relativistic particle in one spatial... LA - eng M2 - 345 PB - MDPI KW - Statistical systems KW - Classical particles KW - Quantum fields KW - Approach to equilibrium TI - Approach to equilibrium of statistical systems: classical particles and quantum fields off-equilibrium TY - journal article VL - 3 ER -